| 单词 | transitional element |
| 释义 | > as lemmastransitional element transitional element n. [after Russian perexodnyj èlement (D. I. Mendeleev 1895, in Osnovy ximii 444 (6th ed.), or earlier)] Chemistry (now rare and chiefly historical) = transition element n. at transition n. Compounds 2. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > transition element > [noun] > group VIII transitional element1884 transition element1892 1884 E. Frankland & F. R. Japp Inorg. Chem. x. 75 They [sc. elements of Group VIII] are termed by Mendeleef ‘transitional elements’. 1934 Proc. Royal Soc. A. 144 534 The stable form when M is a transitional element is the true nitro-form M — NO2. 1940 G. H. J. Adlam & L. S. Price Higher School Certificate Inorg. Chem. (ed. 2) lvii. 596 Mendeléeff called the elements iron, cobalt and nickel transitional elements. < as lemmas |
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